PRESSURE-SENSITIVE ADHESIVE COMPOSITION
    4.
    发明申请
    PRESSURE-SENSITIVE ADHESIVE COMPOSITION 审中-公开
    压敏粘合剂组合物

    公开(公告)号:US20120232226A1

    公开(公告)日:2012-09-13

    申请号:US13508641

    申请日:2010-11-08

    IPC分类号: C08L67/02

    摘要: The present invention has an object to provide a pressure-sensitive adhesive composition that provides a polyester-based pressure-sensitive adhesive capable of realizing both of heat resistance and adhesive force at high levels and a pressure-sensitive adhesive sheet having a polyester-based pressure-sensitive adhesive. The pressure-sensitive adhesive composition provided by the present invention contains a polyester resin A with Mw of 4×104 to 12×104 and a polyester resin B with Mw of 0.3×104 to 1×104. The ratio (mA:mB) of the number of moles mA and mB of the polyester resins A and B is 1:0.35 to 1:1.4. The pressure-sensitive adhesive composition further contains a crosslinking agent, and has a gel fraction after crosslinking of 30 to 65%.

    摘要翻译: 本发明的目的是提供一种压敏粘合剂组合物,其提供能够实现高水平的耐热性和粘合力的聚酯类压敏粘合剂和具有聚酯基压力的压敏粘合片 敏感粘合剂。 由本发明提供的压敏粘合剂组合物含有Mw为4×10 4〜12×10 4的聚酯树脂A和Mw为0.3×10 4〜1×10 4的聚酯树脂B. 聚酯树脂A和B的摩尔数mA和mB的比(mA:mB)为1:0.33至1:1.4。 压敏粘合剂组合物还含有交联剂,交联后的凝胶率为30〜65%。

    PRESSURE-SENSITIVE ADHESIVE TAPE FOR MASKING
    5.
    发明申请
    PRESSURE-SENSITIVE ADHESIVE TAPE FOR MASKING 审中-公开
    压敏粘胶带

    公开(公告)号:US20120208017A1

    公开(公告)日:2012-08-16

    申请号:US13502238

    申请日:2010-10-20

    IPC分类号: C09J7/02

    摘要: A masking pressure-sensitive adhesive tape includes a substrate and a pressure-sensitive adhesive layer that is provided on at least one side of the substrate and made from a polyester-based pressure-sensitive adhesive composition containing a polyester including at least a lactic acid unit, a dibasic acid unit, and a glycol unit, and a crosslinking agent. The dibasic acid unit includes a dimer acid, the polyester has a weight average molecular weight of 20,000 to 200,000 and a glass transition temperature of −70 to −20° C. as measured using a differential scanning calorimeter at a temperature rise rate of 20° C./minute, the polyester has a hydroxyl value of 1 to 60 mgKOH/g, and the pressure-sensitive adhesive layer has a gel fraction of 40 to 90% by weight.

    摘要翻译: 掩模型压敏粘合带包括基材和压敏粘合剂层,所述基材和粘合剂层设置在所述基材的至少一侧上,并由含有至少包含乳酸单元的聚酯的聚酯系压敏粘合剂组合物 ,二元酸单元,二元醇单元和交联剂。 二元酸单元包括二聚酸,聚酯的重均分子量为20,000〜200,000,玻璃化转变温度为-70〜-20℃,使用差示扫描量热计,以20℃的升温速度 所述聚酯具有1至60mgKOH / g的羟基值,并且所述压敏粘合剂层的凝胶分数为40至90重量%。